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Finding the Fourth Proportional to 885,200,380.80, 1,241,094,518.40 and 885,200,380.80

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Solution

The fourth proportional to 885,200,380.80, 1,241,094,518.40 and 885,200,380.80 is: 1,241,094,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,200,380.80 : 1,241,094,518.40 = 885,200,380.80 : x
  2. Step 2: Convert to fraction form
    885,200,380.80/1,241,094,518.40 = 885,200,380.80/x
  3. Step 3: Cross multiply
    885,200,380.80x = 1,241,094,518.40 × 885,200,380.80
  4. Step 4: Simplify right side
    885,200,380.80x = 1,098,617,340,296,472,576
  5. Step 5: Solve for x
    x = 1,098,617,340,296,472,576/885,200,380.80
  6. Step 6: Final answer
    x = 1,241,094,518.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.